POSIX

POSIX (Portable Operating System Interface) is a family of IEEE and Open Group standards that define a consistent operating system API, command line shell, and utility interfaces for maintaining compatibility between Unix and Unix-like systems. It is a specification rather than a network API, and there is no public REST or HTTP interface for the standard.

POSIX is profiled on the APIs.io network. Tagged areas include IEEE, Open-Group, Operating Systems, POSIX, and Standards.

🌐 Visit website 📡 Source on GitHub

5.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

0 APIs

IEEEOpen-Group Operating Systems POSIX Standards Unix

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 5.0/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/posix: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Resources

Other 4

Properties that don't map to a standard resource type

Standards

IEEE

Wikipedia

OpenGroup

Source (apis.yml)

aid: posix
name: POSIX
description: POSIX (Portable Operating System Interface) is a family of IEEE and Open Group standards that define a consistent
  operating system API, command line shell, and utility interfaces for maintaining compatibility between Unix and Unix-like
  systems. It is a specification rather than a network API, and there is no public REST or HTTP interface for the standard.
kind: standard
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/posix.png
tags:
- IEEE
- Open-Group
- Operating Systems
- POSIX
- Standards
- Unix
tags_raw:
- IEEE
- Open Group
- Operating Systems
- POSIX
- Standards
- Unix
url: https://raw.githubusercontent.com/api-evangelist/posix/refs/heads/main/apis.yml
created: '2025-01-01'
modified: '2026-04-28'
specificationVersion: '0.23'
apis: []
common:
- type: Standards
  url: https://pubs.opengroup.org/onlinepubs/9699919799/
- type: IEEE
  url: https://standards.ieee.org/ieee/1003.1/7700/
- type: Wikipedia
  url: https://en.wikipedia.org/wiki/POSIX
- type: OpenGroup
  url: https://www.opengroup.org/austin/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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